Home / 102,916.08-154,355.76-55,509.12

Finding the Fourth Proportional to 102,916.08, 154,355.76 and 55,509.12

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Solution

The fourth proportional to 102,916.08, 154,355.76 and 55,509.12 is: 83,253.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,916.08 : 154,355.76 = 55,509.12 : x
  2. Step 2: Convert to fraction form
    102,916.08/154,355.76 = 55,509.12/x
  3. Step 3: Cross multiply
    102,916.08x = 154,355.76 × 55,509.12
  4. Step 4: Simplify right side
    102,916.08x = 8,568,152,404.53
  5. Step 5: Solve for x
    x = 8,568,152,404.53/102,916.08
  6. Step 6: Final answer
    x = 83,253.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.